The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae)
Author
Prena, Jens
text
Zootaxa
2005
2005-12-19
1100
1
1
151
https://biotaxa.org/Zootaxa/article/view/zootaxa.1100.1.1
journal article
10.11646/zootaxa.1100.1.1
11755334
5051728
7C1F1264-5F23-4557-BFC2-4D015289CF7E
48.
Embates championi
(Casey)
(Fig. 162–163, 256)
Ambates cretifer
Pascoe 1880
.
Champion 1907: 156
(as var., misidentified).
Cholinambates championi
Casey 1922: 6
.
Holotype
female,
Costa Rica
, labeled “
♀
”, “sp. figured”, “
Holotype
”, “16339”, “
Collection
/
SchildBurgdorf
/
Costa Rica
/
Turrialba
”, “
Cholinambates
/ championi/ type 1922
Casey
” (BMNH)
Ambates (Cholinambates) championi
(Casey)
.
Hustache 1938
(cat.)
Embates
[
championi
].
AlonsoZarazaga & Lyal 1999
(global combination of all species of
Ambates
Schönherr 1836
with
Embates
Chevrolat 1833
)
Redescription. Habitus: Fig. 162, total length
7.8–9.8 mm
(m=8.8, n=17). Color: integument almost black; basic vestiture of microscopic scales; scales yellow (lowlands) to creamy white (around
1000 m
elevation) on prosternum, in lateral pronotal marking and two oblique elytral fasciae (Fig. 162), anterior fascia reaching metasternum. Head: frontal fovea deep, rostrum moderate, subcylindrical (Fig. 163), sides attenuated between apex and antennal insertion, costate dorsomedially, basolateral margin slightly edged, length of rostrum
♂♂
1.12–1.25 x (m=1.18, n=7),
♀♀
1.18–1.34 x (m=1.27, n=10) pronotal length, length of anteantennal portion
♂♂
0.33–0.40 x (m=0.36, n=7),
♀♀
0.37–0.43 x (m=0.40, n=10) total rostral length, dorsal margin of antennal scrobe reaching rostral base well before eye; funicular segment 2 distinctly longer than 1, club oblong ovate. Pronotum: length 0.83–0.89 x (m=0.86, n=17) maximum width, widest in basal third, then roundly narrowed, anterior portion tubulate; disk finely punctate, intervals smooth. Elytra: length 1.82–1.96 x (m=1.88, n=17) width at humeri, width 1.13–1.26 x (m=1.20, n=17) maximum pronotal width, sides subparallel in basal half, apices rounded conjointly, preapical callus weakly developed, striae fine, punctures distinct, interstriae flat, 9 convex. Legs: rather stout, tibia nearly straight, ventral margin with distal cluster of cupreous hairs, tarsal claws arcuate and separate at base. Male: aedeagus as
E. obliquus
.
Plant association. Not known.
Distribution.
Costa Rica
, Atlantic side (Fig. 256).
Material
examined.
COSTA RICA
.
Alajuela
:
Guápiles
,
250 m
(
NMNH
)
.
Cartago
:
Tucurrique
,
770 m
(
SNSD
)
;
Turrialba
,
500–600 m
(
BMNH
,
JPPC
,
SNSD
)
;
Cachí
,
1050 m
(
CWOB
)
.
Guanacaste
:
A.C.
Guanacaste
,
Est. Cacao
,
1100 m
(
INBC 2
)
,
Est. Maritza
,
600 m
(
INBC 2
)
;
Rincón de la Vieja
,
Est. Pailas
,
800 m
(
INBC 4
)
.
Limón
:
Res. Biol. Hitoy Cerere
,
100 m
(
INBC
)
;
Waldeck
,
300 m
(
NMNH
)
.
Puntarenas
:
Monteverde
,
1000–1520 m
(
CHAH
,
INBC 3
)
. Total
21 specimens
.
Discussion.
Champion (1907)
assigned the single specimen as a variety to
E. cretifer
. This was one of the very few errors in this otherwise remarkably thorough study of the genus.
Casey (1922)
gave the specimen a name by referring to Champion’s illustration.
Embates championi
is a sibling species of
E. albocinctus
and distinct from
E. cretifer
,
E. paludicola
and
E. salamandra
, all species with similar colorpattern.